Trace number 1628229

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
march_hi hiSAT 5.2542 5.27508

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/SATISFIABLE/400/
unif-k3-r4.25-v400-c1700-S981523907-072.cnf
MD5SUMcf49ce63274aed23e9ae314dbfe30852
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.020996
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of clauses1700
Sum of the clauses size5100
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31700
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.01	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.01	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.00/0.01	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.00/0.01	c main()::
0.00/0.01	c initFormula():: searching for DIMACS p-line....
0.00/0.01	c initFormula():: the DIMACS p-line indicates a CNF of 400 variables and 1700 clauses.
0.00/0.01	c parseCNF():: parsing....
0.00/0.01	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.01	c runParser():: parsing was successful, warming up engines...
0.00/0.01	c simplify_formula():: removed 0 tautological, 12 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 398 free variables and 1688 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.463
0.00/0.01	c using 3-SAT heuristics (occurence based diff)
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 198 duplicate clauses
0.00/0.01	c resolvent_look() :: found 111 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 400 variables and 1799 clauses.
0.00/0.01	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.01	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.01	c transformTo3SAT():: the transformation yielded 400 variabels and 1799 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1799 / 400 ) = 4.50
0.00/0.01	c longest clause has size 3
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c number of free variables = 398
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/14) NodeCount: 117
0.00/0.07	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
c |***************************************************************
c |****************************************************************| ( 1/14) NodeCount: 2949
1.29/1.36	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |*****************
c |******************
c |********************
c |************************
c |*************************
c |**************************
c |****************************
c |*****************************
c |******************************
c |*******************************
c |********************************
c |*********************************
c |**********************************
c |************************************
c |****************************************
c |*****************************************
c |******************************************
c |********************************************
c |*********************************************
c |**********************************************
c |***********************************************
c |************************************************
c |*************************************************
c |**************************************************
c |****************************************************
c |*****************************************************
c |******************************************************
c |*******************************************************
c |********************************************************
c |*********************************************************
c |**********************************************************
c |***********************************************************
c |************************************************************
c |*************************************************************
c |**************************************************************
5.18/5.27	c |00000100100000.01001000000000000$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$|
5.18/5.27	
c |**************************************************************
5.18/5.27	c
5.18/5.27	c main():: nodeCount: 11362
5.18/5.27	c main():: dead ends in main: 318
5.18/5.27	c main():: lookAheadCount: 725036
5.18/5.27	c main():: unitResolveCount: 133229
5.18/5.27	c main():: time=5.250000
5.18/5.27	c main():: necessary_assignments: 2970
5.18/5.27	c main():: bin_sat: 0, bin_unsat 0
5.18/5.27	c main():: doublelook: #: 42311, succes #: 30028
5.18/5.27	c main():: doublelook: overall 6.052 of all possible doublelooks executed
5.18/5.27	c main():: doublelook: succesrate: 70.970, average DL_trigger: 46.857
5.18/5.27	c main():: SOLUTION VERIFIED :-)
5.18/5.27	s SATISFIABLE
5.18/5.27	v 1 -2 3 -4 -5 -6 7 -8 -9 10 -11 12 -13 14 -15 16 -17 -18 19 -20 21 -22 -23 -24 -25 -26 27 -28 -29 -30 -31 32 33 -34 35 -36 -37 38 39 40 -41 -42 43 -44 45 46 47 48 -49 50 51 -52 -53 54 55 56 57 -58 59 60 -61 -62 63 64 -65 66 -67 -68 -69 -70 71 -72 73 74 75 76 77 -78 79 80 -81 82 83 -84 87 -88 -89 90 91 -92 -93 94 -95 97 98 -99 -100 101 -102 103 -104 -105 106 -107 108 109 -110 111 -113 114 115 116 117 118 119 -120 -121 122 -123 -124 -125 -126 -127 -128 129 -130 -131 132 133 -134 135 136 137 138 139 140 141 142 -143 144 145 -146 -147 148 -149 -150 151 -152 153 -154 -155 156 157 158 159 160 161 -162 163 -164 165 166 -167 168 169 -170 171 172 173 174 -175 176 -177 178 179 -180 181 -182 -183 -184 185 186 187 188 189 190 -191 192 -194 -195 -196 197 -198 -199 200 201 202 203 -204 -205 206 207 -208 209 -210 211 -213 -214 215 216 -217 218 -219 -220 221 -222 -223 -224 -225 226 -227 228 -229 -230 231 232 -233 -234 235 236 -237 238 240 -241 -242 243 244 -245 -246 247 -248 -249 -250 -251 252 -253 -254 255 -256 -257 258 259 260 -262 263 264 266 -267 268 269 -270 -271 272 -273 274 -275 276 277 278 -279 280 281 -282 -283 284 285 286 287 288 -289 -290 291 -292 293 -294 -295 296 -297 298 299 300 -301 -302 -303 -304 305 -306 307 308 309 -310 -311 -312 313 314 315 -316 317 318 319 -320 321 -322 -323 324 -325 -326 327 -328 -329 330 -331 -332 -333 -334 -335 336 337 338 -339 340 341 343 -344 345 346 -347 348 -349 -350 351 352 353 354 355 356 357 -358 359 360 362 363 364 -365 -366 367 -368 369 370 -371 -372 -373 374 -376 -377 -378 379 -380 -381 -382 -383 384 -385 -386 -387 388 389 -390 -391 -392 -393 -394 -395 396 -397 398 -399 -400 0

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1628229-1240141620/watcher-1628229-1240141620 -o /tmp/evaluation-result-1628229-1240141620/solver-1628229-1240141620 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1628229-1240141620.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.03 1.01 1.00 2/64 28025
/proc/meminfo: memFree=1222000/2055920 swapFree=4192956/4192956
[pid=28025] ppid=28023 vsize=976 CPUtime=0
/proc/28025/stat : 28025 (march_hi) R 28023 28025 26973 0 -1 4194304 136 0 0 0 0 0 0 0 18 0 1 0 42195264 999424 119 1992294400 134512640 135197378 4294956240 18446744073709551615 134565239 0 0 4096 0 0 0 0 17 1 0 0
/proc/28025/statm: 244 119 65 167 0 75 0

[startup+0.00893888 s]
/proc/loadavg: 1.03 1.01 1.00 2/64 28025
/proc/meminfo: memFree=1222000/2055920 swapFree=4192956/4192956
[pid=28025] ppid=28023 vsize=976 CPUtime=0
/proc/28025/stat : 28025 (march_hi) R 28023 28025 26973 0 -1 4194304 150 0 0 0 0 0 0 0 18 0 1 0 42195264 999424 133 1992294400 134512640 135197378 4294956240 18446744073709551615 134692316 0 0 4096 0 0 0 0 17 1 0 0
/proc/28025/statm: 244 133 78 167 0 75 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 976

[startup+0.101956 s]
/proc/loadavg: 1.03 1.01 1.00 2/64 28025
/proc/meminfo: memFree=1222000/2055920 swapFree=4192956/4192956
[pid=28025] ppid=28023 vsize=1556 CPUtime=0.1
/proc/28025/stat : 28025 (march_hi) R 28023 28025 26973 0 -1 4194304 260 0 0 0 10 0 0 0 18 0 1 0 42195264 1593344 243 1992294400 134512640 135197378 4294956240 18446744073709551615 134618596 0 0 4096 0 0 0 0 17 1 0 0
/proc/28025/statm: 389 243 91 167 0 220 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1556

[startup+0.301995 s]
/proc/loadavg: 1.03 1.01 1.00 2/64 28025
/proc/meminfo: memFree=1222000/2055920 swapFree=4192956/4192956
[pid=28025] ppid=28023 vsize=1688 CPUtime=0.3
/proc/28025/stat : 28025 (march_hi) R 28023 28025 26973 0 -1 4194304 275 0 0 0 30 0 0 0 19 0 1 0 42195264 1728512 258 1992294400 134512640 135197378 4294956240 18446744073709551615 134597722 0 0 4096 0 0 0 0 17 1 0 0
/proc/28025/statm: 422 258 91 167 0 253 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1688

[startup+0.701073 s]
/proc/loadavg: 1.03 1.01 1.00 2/64 28025
/proc/meminfo: memFree=1222000/2055920 swapFree=4192956/4192956
[pid=28025] ppid=28023 vsize=1688 CPUtime=0.69
/proc/28025/stat : 28025 (march_hi) R 28023 28025 26973 0 -1 4194304 285 0 0 0 69 0 0 0 22 0 1 0 42195264 1728512 268 1992294400 134512640 135197378 4294956240 18446744073709551615 134697414 0 0 4096 0 0 0 0 17 1 0 0
/proc/28025/statm: 422 268 91 167 0 253 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1688

[startup+1.50123 s]
/proc/loadavg: 1.03 1.01 1.00 2/65 28026
/proc/meminfo: memFree=1221288/2055920 swapFree=4192956/4192956
[pid=28025] ppid=28023 vsize=1688 CPUtime=1.49
/proc/28025/stat : 28025 (march_hi) R 28023 28025 26973 0 -1 4194304 292 0 0 0 149 0 0 0 25 0 1 0 42195264 1728512 275 1992294400 134512640 135197378 4294956240 18446744073709551615 134556697 0 0 4096 0 0 0 0 17 1 0 0
/proc/28025/statm: 422 275 91 167 0 253 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1688

[startup+3.10154 s]
/proc/loadavg: 1.02 1.01 1.00 2/65 28026
/proc/meminfo: memFree=1221160/2055920 swapFree=4192956/4192956
[pid=28025] ppid=28023 vsize=1820 CPUtime=3.08
/proc/28025/stat : 28025 (march_hi) R 28023 28025 26973 0 -1 4194304 299 0 0 0 308 0 0 0 25 0 1 0 42195264 1863680 282 1992294400 134512640 135197378 4294956240 18446744073709551615 134525324 0 0 4096 0 0 0 0 17 1 0 0
/proc/28025/statm: 455 282 91 167 0 286 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 1820

Solver just ended. Dumping a history of the last processes samples

[startup+3.9017 s]
/proc/loadavg: 1.02 1.01 1.00 2/65 28026
/proc/meminfo: memFree=1221032/2055920 swapFree=4192956/4192956
[pid=28025] ppid=28023 vsize=1820 CPUtime=3.88
/proc/28025/stat : 28025 (march_hi) R 28023 28025 26973 0 -1 4194304 299 0 0 0 388 0 0 0 25 0 1 0 42195264 1863680 282 1992294400 134512640 135197378 4294956240 18446744073709551615 134539243 0 0 4096 0 0 0 0 17 1 0 0
/proc/28025/statm: 455 282 91 167 0 286 0
Current children cumulated CPU time (s) 3.88
Current children cumulated vsize (KiB) 1820

[startup+4.70185 s]
/proc/loadavg: 1.02 1.01 1.00 2/65 28026
/proc/meminfo: memFree=1221032/2055920 swapFree=4192956/4192956
[pid=28025] ppid=28023 vsize=1820 CPUtime=4.68
/proc/28025/stat : 28025 (march_hi) R 28023 28025 26973 0 -1 4194304 300 0 0 0 468 0 0 0 25 0 1 0 42195264 1863680 283 1992294400 134512640 135197378 4294956240 18446744073709551615 134552722 0 0 4096 0 0 0 0 17 0 0 0
/proc/28025/statm: 455 283 91 167 0 286 0
Current children cumulated CPU time (s) 4.68
Current children cumulated vsize (KiB) 1820

[startup+5.10193 s]
/proc/loadavg: 1.02 1.01 1.00 2/65 28026
/proc/meminfo: memFree=1221032/2055920 swapFree=4192956/4192956
[pid=28025] ppid=28023 vsize=1820 CPUtime=5.08
/proc/28025/stat : 28025 (march_hi) R 28023 28025 26973 0 -1 4194304 304 0 0 0 508 0 0 0 25 0 1 0 42195264 1863680 287 1992294400 134512640 135197378 4294956240 18446744073709551615 134552743 0 0 4096 0 0 0 0 17 0 0 0
/proc/28025/statm: 455 287 91 167 0 286 0
Current children cumulated CPU time (s) 5.08
Current children cumulated vsize (KiB) 1820

[startup+5.20195 s]
/proc/loadavg: 1.02 1.01 1.00 2/65 28026
/proc/meminfo: memFree=1221032/2055920 swapFree=4192956/4192956
[pid=28025] ppid=28023 vsize=1820 CPUtime=5.18
/proc/28025/stat : 28025 (march_hi) R 28023 28025 26973 0 -1 4194304 305 0 0 0 518 0 0 0 25 0 1 0 42195264 1863680 288 1992294400 134512640 135197378 4294956240 18446744073709551615 134552521 0 0 4096 0 0 0 0 17 0 0 0
/proc/28025/statm: 455 288 91 167 0 286 0
Current children cumulated CPU time (s) 5.18
Current children cumulated vsize (KiB) 1820

Child status: 10
Real time (s): 5.27508
CPU time (s): 5.2542
CPU user time (s): 5.2522
CPU system time (s): 0.001999
CPU usage (%): 99.6041
Max. virtual memory (cumulated for all children) (KiB): 1820

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.2522
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 309
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 30

runsolver used 0.009998 second user time and 0.015997 second system time

The end

Launcher Data 

Begin job on node28 at 2009-04-19 13:47:00
IDJOB=1628229
IDBENCH=70685
IDSOLVER=583
FILE ID=node28/1628229-1240141620
PBS_JOBID= 9157892
Free space on /tmp= 66348 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/SATISFIABLE/400/unif-k3-r4.25-v400-c1700-S981523907-072.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1628229-1240141620/watcher-1628229-1240141620 -o /tmp/evaluation-result-1628229-1240141620/solver-1628229-1240141620 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1628229-1240141620.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= cf49ce63274aed23e9ae314dbfe30852
RANDOM SEED=2080420343

node28.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.261
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.261
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1222480 kB
Buffers:         85136 kB
Cached:         666876 kB
SwapCached:          0 kB
Active:         342676 kB
Inactive:       424020 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1222480 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:             892 kB
Writeback:           0 kB
Mapped:          24432 kB
Slab:            52596 kB
Committed_AS:   224484 kB
PageTables:       1420 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66344 MiB
End job on node28 at 2009-04-19 13:47:05